The powder sintered technology for manufacturing thick metal hydride electrodes has been extensively investigated. A slurry consisting of hydrogen storage alloy powder mixed with fine nickel powder and some additives was pasted onto the nickel foam as a current collector. By choosing adjustable sintering parameters, the composite metal hydride electrode was obtained. The effects of sintering parameters on the electrochemical properties of sintered metal hydride electrode have been characterized. The results showed that the activation and high rate discharge ability were greatly improved and comparable to that obtained with conventional pasting process for sintered hydride electrode. In order to design the thick metal hydride electrode Suitable for the oxygen diffusion electrode of airmetal hydride semi fuel cell, the electrochemical characteristics of thick metal hydride electrode were comparativly studied for different metal substrates, suchas perforated nickel strip, perforated copper foil and copper mesh. As a consequence, the thick metal hydride electrode employing the perforated copper foil as a current collector has been evaluated to be suitable for the airmetal Hydride semi fuel cell.